Boiling is evidenced by an upward water flow into the bottom of the cut. A high water table is one of the causes of boiling. Boiling produces a “quick” condition in the bottom of the excavation or trench, and can occur even when shoring or trench boxes are used. For additional information, see OSHA Technical Manual […]

Ingress and Egress mean “entry” and “exit,” respectively. In trenching and excavation operations, they refer to the provision of safe means for employees to enter or exit an excavation or trench. For additional information, see OSHA Technical Manual (OTM) Section V: III. Overview: Soil Mechanics. At Ron Meyer & Associates Excavating, we’ve been providing underground and […]

Tension cracks usually form at a horizontal distance of 0.5 to 0.75 times the depth of the trench, measured from the top of the vertical face of the trench. For a visual, see Figure V:2-1. Tension Crack. For additional information, see OSHA Technical Manual (OTM) Section V: III. Overview: Soil Mechanics. At Ron Meyer & Associates […]

Support System refers to structures such as underpinning, bracing, and shoring that provide support to an adjacent structure or underground installation or to the sides of an excavation or trench. For additional information, see OSHA Technical Manual (OTM) Section V: Chapter 2 (Definitions). At Ron Meyer & Associates Excavating, we’ve been providing underground and commercial construction to […]

A Registered Professional Engineer is a person who is registered as a professional engineer in the state where the excavation work is to be performed. However, a professional engineer who is registered in any state is deemed to be a “registered professional engineer” within the meaning of Subpart P when approving designs for “manufactured protective […]

Emergency rescue equipment is required when a hazardous atmosphere exists or can reasonably be expected to exist. Requirements are as follows: For additional information, see OSHA Technical Manual (OTM) X. Special Health and Safety Considerations. At Ron Meyer & Associates Excavating, we’ve been providing underground and commercial construction to private and commercial businesses for 40+ years. […]